n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 2 |
5 | 7 |
6 | 36 |
7 | 391 |
8 | 17536 |
9 | 7520303 |
10 | 134830884224 |
11 | 1016333764230127711 |
12 | 137040823237740906153712364032 |
13 | 139279234211744145176797121311869355242595356863 |
[0,0,1,2,7,36,391,17536,7520303,134830884224, 1016333764230127711, 137040823237740906153712364032, 139279234211744145176797121311869355242595356863] |